Use the inverse of the coefficient matrix to solve the system of equations. x+2y+3z = 13 2x+3y + 2z = 7 -x-2y-2z = -21

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A: Given query is to find the domain and range of the inverse function.

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A: We are given graph of f(x). Domain of function [-6,6].

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A: Let the number of boys in the hall at first be x and number of girls in the hall at first be y.

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Q: The slope of the line below is 543 5 3 21 -5 -4 -3 -2 -1 -1 -3- -4 5 2 3 4 5

A: As we know slope of line passing through two points x1,y1 and x2,y2⇒slope=y2-y1x2-x1

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A: I have appended the formula used in the solution part of the question

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A: Question 8 part a   Cartesian equation of plane passing through three points with position…

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A: We have use the concept of series

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A: (1)  V=5xy56we know ab=(a)1b

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A: The given expression is 3.480.12 .

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A: Graphing the following exponential function satisfying the point (0,1)

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Q: 6. Write the following set of equations in matrix form: 55= 5x₁ - 7x₂ 4x, + 6x, +30= 0 x-7x, = 40-…

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Q: Sketch the graph of f(x) = x + 2x. Clearly label the x-intercepts and y-intercepts.

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Q: find the slope please ?

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A: we need to find all possible solutions in [0,2π].

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Q: m 3

A: Coordinate Geometry

Q: If theres no answer enter DNE

A: Here we have to find the extrema by observing the graph.

Q: The least possible degree of the polynomial function represented by the grap 카 3 5 2

A: we will find the required.

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A: Given: Ored 80,91,79,86, and 84 on his previous five tests. What score does he need on his next test…

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A: Given query is to simplify the expression.

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Q: When 4 times a number is increased by 5, the square root of the result is 11. Find the number.

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Q: Prove that the quadrilateral with vertices A(0,0),B(4,3),C(7,-1) and D(3,-4) is a square.   Prove…

A: ABCD will be a square if all its sides are equal.⇒AB=BC=CD=DA must be satisfied.Both the diagonals…

Q: The frequency, or pitch, of a musical note varies inversely with the wavelength. The speed of sound,…

A: let,  f=frequecy  w=wavelength  and proportionality constant k is k=340.2 m/s

Q: -12 Identify how the graph of f was stretched or shrunk, horizontally or vertically, and by what…

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A: Given: The fraction of hiv positive is given as ==111000.

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A: Given that y6, y7, y9To determine GCF of y6, y7, y9

Q: Numerical Response 7. The value of x which satisfies the equation a^(3x)=(log_(c)c^(a))^(2x+5) is

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Q: Find the average rate of change of f(x) = 3x² - 2 on the interval [3, 6]. Your answer will be an…

A: f(x)=3x2-2 on interval [3,b]averare rate of change=f(x2)-f(x1)x2-x1

Q: In questions 10-12, given r(x)=-3x, p(x)=x² + 3x, and g(x)=√√1-x, find the algebra of functions and…

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